Question 37: Mary’s room is dirty. It is messy too. (not only.....but)

=>Not only Mary's room dirty but it also messy.

Question 38: The old house burned down last week. No one lived there. (where)

=>The old house where no one lived burned down last week.

Question 39: I don’t know anything about plumbing. I can’t fix the leak in the sink myself. (if)

=>If I knew something about plumbing, I could fix the leak in the sink myself.

Question 40: The dates of the exam need to change. All students can take it. (in order)

=>The dates of the exam need to change in order that all students can take it.

Qs 37: Not only Mary's room dirty but it also messy.

Qs 38: The old house where no one live burned down last week.

Qs 39:  If I knew about plumbing, I could fix the leak in the sink myself.

Qs 40: The dates of the exam need to change in order that all students can take it.

Chúc học tốt!!~